Rubber roller fixing device of offset press

Abstract

The utility model discloses a rubber roller fixing device of an offset press, which comprises a rubber roller, two offset press side plates arranged in the middle of the fixing device and respectively clamped with the left end face and the right end face of the rubber roller, an outer bearing arranged in the offset press side plates and fixedly connected with the offset press side plates, an inner bearing arranged in the outer bearing and rotationally connected with the inner side face of the outer bearing, and an outer bearing arranged in the outer bearing and fixedly connected with the inner side face of the inner bearing. The two roller shafts are fixedly connected with the left end face and the right end face of the rubber roller respectively, the outer side faces of the roller shafts are connected with the inner bearings in a clamped mode, the outer covers are arranged on the outer side faces of the offset press side plates and are in threaded connection with the outer side faces of the offset press side plates, and a rotating shaft of the rotating motor penetrates through the outer side face of one outer cover and then is in threaded connection with the outer end of one roller shaft. The connecting pieces are evenly distributed on the outer side face of the roller shaft, one ends of the connecting pieces are fixedly connected with the inner side face of the inner bearing, and the other ends of the connecting pieces are connected with the outer side face of the roller shaft. The beneficial effect of the utility model is that the stability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field related to offset printing machine parts, in particular to a rubber roller fixing device of an offset printing machine. Background Art

[0002] The rubber roller is the most important component of transfer printing. The existing fixing devices are simply clamped, which is not very stable and is prone to slipping and dislocation. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art, such as low stability and easy slippage and dislocation, and provides a rubber roller fixing device for an offset printing machine with higher stability.

[0004] In order to achieve the above-mentioned object, the utility model provides a rubber roller fixing device for an offset printing press, comprising:

[0005] A rubber roller is arranged in the middle of the fixing device;

[0006] Two offset printing machine side plates are respectively connected to the left and right end surfaces of the rubber roller;

[0007] An external bearing is placed in the side plate of the offset printing press and is fixedly connected to the side plate of the offset printing press;

[0008] an inner bearing disposed within the outer bearing and rotatably connected to the inner side surface of the outer bearing;

[0009] Two rollers are fixedly connected to the left and right end surfaces of the rubber roller respectively. The other ends of the rollers pass through the inner bearing and are placed on the outer side of the side plate of the offset printing machine. The outer side of the rollers is clamped with the inner bearing.

[0010] An outer cover is placed on the outer side of the offset printing press side plate, the outer cover can cover the outer bearing and the inner bearing, and the outer cover is threadedly connected to the outer side of the offset printing press side plate;

[0011] A rotating motor is placed outside the outer cover, and a rotating shaft of the rotating motor passes through the outer side surface of one of the outer covers and is threadedly connected to the outer end of one of the rollers;

[0012] A plurality of connecting pieces are evenly distributed on the outer side of the roller shaft, one end of the connecting piece is fixedly connected to the inner side of the inner bearing, and the other end of the connecting piece is connected to the outer side of the roller shaft.

[0013] During use, the outer bearing is clamped into the two side plates of the offset printing machine and fixed. Then the roller shaft of the rubber roller is passed through the inner bearing and clamped with the inner wall of the inner bearing. To ensure fixation, one end of the connecting piece on the inner bearing is fixed to the roller shaft. Then the inner bearing is installed in the outer bearing and the outer bearing and the inner bearing can rotate smoothly. To ensure the operation of the outer bearing and the inner bearing, an outer cover is put on the outside. Finally, the rotating shaft of the rotating motor is threadedly connected to the roller shaft at one end. The connection is both tight and convenient, achieving the purpose of higher stability.

[0014] Preferably, a connecting groove is provided on the outer side of the offset printing press side plate. The connecting groove is annular in shape and surrounds the outer side surface of the outer bearing. The outer cover is threadedly connected to the outer side surface of the offset printing press side plate through the connecting groove. The connecting groove facilitates installation of the outer cover.

[0015] Preferably, the inner side of the outer bearing is provided with balls and an annular groove 1. A plurality of balls are evenly distributed within the annular groove 1, and the balls respectively contact the inner side of the annular groove 1 and the outer side of the inner bearing. The balls ensure that the inner bearing can rotate smoothly with the rubber roller.

[0016] Preferably, an annular groove 2 is provided on the outer surface of the inner bearing, and the balls are placed in the annular groove 1 and the annular groove 2, and the balls are in contact with the inner side surfaces of the annular groove 1 and the annular groove 2, respectively. The annular groove 1 and the annular groove 2 facilitate the installation of the balls.

[0017] Preferably, the outer surface of the outer bearing is provided with a plurality of clips, the clips being fixedly connected to the outer surface of the outer bearing, the side panel of the offset printing press is provided with a plurality of first clip slots, the first clip slots corresponding one to the clips, the clips being placed in the first clip slots, and the outer bearing being clipped to the side panel of the offset printing press through the cooperation of the clips and the first clip slots. The clips and the first clip slots can improve the stability of the outer bearing.

[0018] Preferably, the inner side surface of the inner bearing is provided with a second clamping groove and a sealing ring, the sealing ring being placed in the second clamping groove and surrounding the outer side surface of the roller shaft and in contact with the outer side surface of the roller shaft, so as to facilitate fixing the roller shaft.

[0019] Preferably, the cross-section of the connecting piece is thicker at one end and thinner at the other end, with the thicker end of the connecting piece fixedly connected to the inner bearing. Screws are provided on the connecting piece, and the thinner end of the connecting piece is fixedly connected to the roller shaft via the screws. The cross-section of the connecting piece having a thicker end and a thinner end can improve the strength of the connecting piece.

[0020] Preferably, the outer surface of the roller is provided with a plurality of threaded holes, each corresponding to a connecting piece. The lower end of the screw passes through the connecting piece and is threadedly connected to the threaded hole. The thin end of the connecting piece is fixedly connected to the roller shaft through the screw and the threaded hole. The threaded holes and screws facilitate installation and removal of the roller shaft and the connecting piece.

[0021] The beneficial effects of the utility model are: higher stability; the connecting groove facilitates the installation of the outer cover; the ball can ensure that the inner bearing can rotate smoothly with the rubber roller; the annular groove 1 and the annular groove 2 are convenient for installing the ball; the clamping strip and the clamping groove 1 can improve the stability of the outer bearing; the sealing ring can easily fix the roller; the cross-sectional shape of the connecting piece is thick at one end and thin at the other end, which can improve the strength of the connecting piece; the threaded hole and the screw facilitate the installation and disassembly of the roller and the connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 It is a cross-sectional view of the main view of the present utility model;

[0024] Figure 3 yes Figure 2 An enlarged view of detail A;

[0025] Figure 4 yes Figure 2 An enlarged view of detail B;

[0026] Figure 5 yes Figure 2 Magnified view of detail C.

[0027] In the figure: 1. Rubber roller, 2. Side plate of offset printing press, 3. Outer bearing, 4. Inner bearing, 5. Roller shaft, 6. Outer cover, 7. Rotating motor, 8. Connecting plate, 9. Connecting groove, 10. Threaded hole, 11. Ball bearing, 12. Annular groove 1, 13. Annular groove 2, 14. Clip strip, 15. Clip groove 1, 16. Clip groove 2, 17. Sealing ring, 18. Screw. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 3 In an embodiment of the present invention, a rubber roller fixing device for an offset printing press comprises:

[0030] The rubber roller 1 is arranged in the middle position of the fixing device;

[0031] Two offset printing machine side plates 2 are respectively connected to the left and right end surfaces of the rubber roller 1;

[0032] The outer bearing 3 is placed in the side plate 2 of the offset printing machine and is fixedly connected to the side plate 2 of the offset printing machine;

[0033] The inner bearing 4 is disposed in the outer bearing 3 and is rotatably connected to the inner side surface of the outer bearing 3;

[0034] Two roller shafts 5 are fixedly connected to the left and right end surfaces of the rubber roller 1 respectively. The other end of the roller shaft 5 passes through the inner bearing 4 and is placed on the outer side surface of the offset printing press side plate 2. The outer side surface of the roller shaft 5 is clamped with the inner bearing 4.

[0035] The outer cover 6 is placed on the outer side of the offset printing press side plate 2. The outer cover 6 can cover the outer bearing 3 and the inner bearing 4. The outer cover 6 is threadedly connected to the outer side of the offset printing press side plate 2.

[0036] The rotating motor 7 is placed outside the outer cover 6, and the rotating shaft of the rotating motor 7 passes through the outer side surface of one of the outer covers 6 and is threadedly connected to the outer end of one of the roller shafts 5;

[0037] Several connecting pieces 8 are evenly distributed on the outer side of the roller shaft 5 . One end of the connecting piece 8 is fixedly connected to the inner side of the inner bearing 4 , and the other end of the connecting piece 8 is connected to the outer side of the roller shaft 5 .

[0038] like Figure 2 and Figure 5 As shown, a connecting groove 9 is provided on the outer side of the offset printing press side plate 2. The connecting groove 9 is annular in shape and surrounds the outer side of the outer bearing 3. The outer cover 6 is threadedly connected to the outer side of the offset printing press side plate 2 through the connecting groove 9.

[0039] like Figure 2 and Figure 4 As shown, balls 11 and an annular groove 12 are provided on the inner side of the outer bearing 3. There are several balls 11 evenly distributed in the annular groove 12. The balls 11 are in contact with the inner side of the annular groove 12 and the outer side of the inner bearing 4 respectively.

[0040] like Figure 2 and Figure 4 As shown, an annular groove 2 13 is provided on the outer surface of the inner bearing 4, and the ball 11 is placed in the annular groove 12 and the annular groove 2 13, and the ball 11 contacts the inner side surface of the annular groove 12 and the inner side surface of the annular groove 2 13 respectively.

[0041] like Figure 2 and Figure 5 As shown, a plurality of clips 14 are provided on the outer surface of the outer bearing 3, and the clips 14 are fixedly connected to the outer side surface of the outer bearing 3. A plurality of slots 15 are provided on the side plate 2 of the offset printing press, and the slots 15 correspond one to one with the clips 14. The clips 14 are placed in the slots 15, and the outer bearing 3 is clipped to the side plate 2 of the offset printing press through the cooperation of the clips 14 and the slots 15.

[0042] like Figure 2 and Figure 4 As shown, the inner side surface of the inner bearing 4 is provided with a second clamping groove 16 and a sealing ring 17 . The sealing ring 17 is placed in the second clamping groove 16 . The sealing ring 17 surrounds the outer side surface of the roller shaft 5 and contacts the outer side surface of the roller shaft 5 .

[0043] like Figure 2 and Figure 3 As shown, the cross-sectional shape of the connecting piece 8 is thick at one end and thin at the other end. The thick end of the connecting piece 8 is fixedly connected to the inner bearing 4. A screw 18 is provided on the connecting piece 8, and the thin end of the connecting piece 8 is fixedly connected to the roller shaft 5 through the screw 18.

[0044] like Figure 2 and Figure 3 As shown, a plurality of threaded holes 10 are provided on the outer surface of the roller, and the threaded holes 10 correspond one-to-one to the connecting pieces 8. The lower end of the screw 18 passes through the connecting piece 8 and is threadedly connected to the threaded hole 10. The thin end of the connecting piece 8 is fixedly connected to the roller shaft 5 through the cooperation of the screw 18 and the threaded hole 10.

[0045] When in use, the clip strip 14 of the outer bearing 3 is inserted into the two offset printing machine side plates 2 along the clip groove 15 and fixed, then the roller shaft 5 of the rubber roller 1 is passed through the inner bearing 4 respectively and is engaged with the inner wall of the inner bearing 4 through the sealing ring 17 in the clip groove 2 16. To ensure fixation, one end of the connecting piece 8 on the inner bearing 4 is placed in the threaded hole 10 and fixed to the roller shaft through the screw 18, then the inner bearing 4 is installed in the outer bearing 3 and a number of balls 11 are inserted into the annular groove 12 of the outer bearing 3 and the annular groove 2 13 of the inner bearing 4. This allows the inner bearing 4 to rotate smoothly. To ensure the operation of the outer bearing 3 and the inner bearing 4, the outer cover 6 is put on the outside. The outer cover 6 is connected to the connecting groove 9 by a thread, which is convenient to install. Finally, the rotating shaft of the rotating motor 7 is passed through the outer cover 6 and is threadedly connected to the roller shaft 5 at one end. The connection is both tight and convenient, achieving the purpose of higher stability.

Claims

1. A rubber roller fixing device for an offset printing press, characterized in that: include: A rubber roller (1) is arranged at the middle position of the fixing device; Two offset printing machine side plates (2) are respectively connected to the left and right end surfaces of the rubber roller (1); An outer bearing (3) is placed in the offset printing press side plate (2) and is fixedly connected to the offset printing press side plate (2); An inner bearing (4) is disposed inside the outer bearing (3) and is rotatably connected to the inner side surface of the outer bearing (3); Two roller shafts (5) are fixedly connected to the left and right end surfaces of the rubber roller (1), respectively. The other end of the roller shaft (5) passes through the inner bearing (4) and is placed on the outer side surface of the offset printing machine side plate (2). The outer side surface of the roller shaft (5) is clamped with the inner bearing (4). An outer cover (6) is placed on the outer side of the offset printing press side plate (2), the outer cover (6) can cover the outer bearing (3) and the inner bearing (4), and the outer cover (6) is threadedly connected to the outer side of the offset printing press side plate (2); A rotating motor (7) is placed outside the outer cover (6), and a rotating shaft of the rotating motor (7) passes through the outer side surface of one of the outer covers (6) and is threadedly connected to the outer end of one of the roller shafts (5); A plurality of connecting pieces (8) are evenly distributed on the outer side of the roller shaft (5), one end of the connecting piece (8) is fixedly connected to the inner side of the inner bearing (4), and the other end of the connecting piece (8) is connected to the outer side of the roller shaft (5).

2. The rubber roller fixing device of an offset printing press according to claim 1, characterized in that: A connecting groove (9) is provided on the outer side surface of the offset printing machine side plate (2). The connecting groove (9) is annular in shape and surrounds the outer side surface of the outer bearing (3). The outer cover (6) is threadedly connected to the outer side surface of the offset printing machine side plate (2) through the connecting groove (9).

3. The rubber roller fixing device of an offset printing press according to claim 1, wherein: The inner side surface of the outer bearing (3) is provided with a ball (11) and an annular groove (12). There are a plurality of balls (11) evenly distributed in the annular groove (12). The balls (11) are in contact with the inner side surface of the annular groove (12) and the outer side surface of the inner bearing (4), respectively.

4. The rubber roller fixing device of an offset printing press according to claim 3, wherein: A second annular groove (13) is provided on the outer surface of the inner bearing (4), and the ball (11) is placed in the first annular groove (12) and the second annular groove (13), and the ball (11) contacts the inner side surface of the first annular groove (12) and the inner side surface of the second annular groove (13), respectively.

5. The rubber roller fixing device of an offset printing press according to claim 1, wherein: A plurality of clamping strips (14) are provided on the outer side surface of the outer bearing (3), and the clamping strips (14) are fixedly connected to the outer side surface of the outer bearing (3). A plurality of clamping slots (15) are provided on the side plate (2) of the offset printing machine, and the clamping slots (15) correspond to the clamping strips (14) one by one. The clamping strips (14) are placed in the clamping slots (15), and the outer bearing (3) is clamped to the side plate (2) of the offset printing machine through the cooperation of the clamping strips (14) and the clamping slots (15).

6. The rubber roller fixing device of an offset printing press according to claim 1, wherein: The inner side surface of the inner bearing (4) is provided with a second clamping groove (16) and a sealing ring (17), wherein the sealing ring (17) is placed in the second clamping groove (16), and the sealing ring (17) surrounds the outer side surface of the roller shaft (5) and contacts the outer side surface of the roller shaft (5).

7. The rubber roller fixing device of an offset printing press according to claim 1, wherein: The cross-section of the connecting piece (8) is thick at one end and thin at the other end. The thick end of the connecting piece (8) is fixedly connected to the inner bearing (4). A screw (18) is provided on the connecting piece (8). The thin end of the connecting piece (8) is fixedly connected to the roller shaft (5) via the screw (18).

8. The rubber roller fixing device of an offset printing press according to claim 7, wherein: A plurality of threaded holes (10) are provided on the outer surface of the roller shaft (5), and the threaded holes (10) correspond to the connecting pieces (8) one by one. The lower end of the screw (18) passes through the connecting piece (8) and is threadedly connected to the threaded hole (10). The thin end of the connecting piece (8) is fixedly connected to the roller shaft (5) through the cooperation of the screw (18) and the threaded hole (10).

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